You need a web browser to display htmlwidgets (which rely on HTML, JS, CSS), so you can use Rmarkdown to create Presentations with ioslides.
Put the rendered
htmlwidgets_save.html(andrendered htmlwidgets_save.html) in a newdocs/folder, turn on Github Pages using docs as Source in your repository's Settings (requires admin privileges), and you'll be able to publicly view it at https://mhepner90.github.io/RVC/htmlwidget_save.html.